Stump burner



I. T. GARTRELL.

` sTuMP BURNER.

APPLICATION FILED DEC.2I| 1920.

1,41 3,112. f Patented Apr- 18, 1922.

2 SHEETS-SHEET l.

/6 3mm/M0@ /7 7 JoH/v TQHRTREU- WQEM J. T. GARTRELL.

STUMP BURNER.

APPLICATION FILED DEc.2I. I92o.

rammed 111118,1922.

2 SHEETS-S HEET 2.

' panying drawings, whereinsTuMP BURNER.

Application filed December 21, 1920. Serial No. 432,176.

T 0 all whom t may concern:

Be it. known that I, JOHN T. GARTRELL, a citizen of the VUnited States, and resident of the town of Napavine, county of Lewis, State of Washington, have invented certain new and useful Improvements in Stump Burners, of which the following is a specification.

This vinvention relates to improvements in stump burners; more particularly it relates to devices of that character whereina plurality of sheet metal sections are assembled to form an enclosure about a stump, whereby, when the stump is fired,'the flames will be conned thereto, a better draft `will be' provided and the stump more quickly and thoroughly destroyed. The principal object.- of the present invention is to provide a stump `burner of the above character comprising a plurality of similar sections, which may be assembled in any required or desiredr numbers according to the diameterof thestump which'it is desired to enclose for burning, and .which may be provided with dampered openings for the admittanceVof-air and the discharge of` Other objects of the invention reside in the detail construction ofthe sections used in the constructionofthe burner, and inthe means whereby these sections are joined together and held in assembled relation while the device is in use.

In accomplishing these and other objects of the invention, I have provided the imforms of which are illustrated inthe accom- Figure l is a' side elevation of a stump burner constructed and assembled according to the present invention.

' Figure 2 is a plan vlewof the same, shown partly in section for the purpose of better illustration.

Figure 3 is a central vertical section through the burner; the latter being in position for burning 'about a stump.

Figure 4 is an enlarged, sectional view, showing parts of a lower and a superim' posed upper section, and. means whereby the upper section may be supported during assembly of the parts.

Figure 5 is a perspective view of one of the locking devices whereby the vertical sections are joined together.

Referring more in detail to the several viewsof the drawings wherein like reference numerals designate the same or like partsl designates the stump burner taken as a whole.k This'in a preferred form, is con'- structed of a plurality of radially curved sheet metal lsections 2, all ofthe same size and shapeV and arranged vertically edge to edge to form a circular enclosure about the stump which isv to be burned; the sections, when assembled, being joined .together and Specification of Letters Patent. Pgmtlited Api'. 1S, 1922.

securely held in functional relation by the use of interlockingv means, ypresently described, at their adjacent edges.-

Upon the upper edges of these lower sections are supported corresponding` upper sections 4, which are of the same width at their bases as the sections whereon'they are supported but are tapered toward their up-v Y Y perk ends so that, when their tapered edges are brought together the sections will form somewhat a conieally shapedcover above the stump. These upper sections are curved radially to fit the curvature of the lower sections andare also curved longitudinally, as shown best in Figure 3, to give the most clearance within the housing.

I will state hereA that I do not wish to limit the construction to .any particular number of sections, since itis apparent that any desirable or required number may be assembled, according to the size of the stump to be burned at any particular time. However,.in

the manufacture of these burners it is in-r tended to curve the bottom sections on a radius equal to the radius of a housing that would be formed by the assembling of six sections, and to include eighteen upper and lower sections with each complete outfit. This number when assembled will be suffi cient to accommodate the largest of stumps and may be assembledto form two, or three housings of'suiicient size for burning smaller stumps. v

For the purpose-of providing an outlet for the escape of smoke from the burner, the Lip-per part of the enclosure is truncated, leaving a central opening 6. This is equipped with a cover or lid 7 Vwhich is preferably attached to one of the sections 4f by means of a small chain 8, and which may be adjustably placed over the opening to regulate the size.` vTo provide for a draft, some of the lower sections, as is shown in Figures l and 3, are provided'with openings 10 in their lower portions for the admittance of air into the burner, and are equipped at opposite sides of the openings with guide fianges 1 1 between which doors 12 vare slidably mounted for adjustment over the openings as required for the proper admittance of air.

The preferred means of joining the lower sections ofthe housing is shown in Figures 1, 2 and 5, wherein 15 designates eyelets that are fixedly attached to corresponding edges of all the sections 2 near their upper and lower edges, and I16 designates .hook like members that are rigidly iixedcooperatively to the opposite .edges of vall fthe sections and w-hich- `have downwardly extending ends 17 adapted .to ,be projected into the eyelets of the adjacent `sections in suoli manner as to hingedly lock the sections together. This construction aii'ords a hinge like connection that :permits variation in the size ofl the :sol

` of the lower sections yis provided on its inner Y burner land Vaffords .easy assembling Vor disassembling .of the sections. i

The uppersections are likewise separably joined together by means Yof eyelets 2O fixed adjacent to corresponding edges, and `hooks 21 that are pivotally fixed to cooperate therewith on 'the opposite edges of the sections, and at their 'lower ends, adjacent .the opposite corners, they are each provided with depending hooks 25 adapted to hook into eyelets 26 fixed to the .upper edges of the lower sections to retain .them in position, and against youtward movement, but which permits a certain 'desired flexibility. Each face adjacent its upper end with an inwardly curved, flanged .plate 28 which serves y as an abutment for retaining the section videdalong its lower .end with ratchet teeth V31 adapted'to lock within a flange plate 32 secured to the lower section. rlhese bars are intended to hold their respective sections at a definite incl-nie while .they are being assembled and until they can be locked to-V gether by the hooks 421.

Assuming that the sections Vare so constructed, it is apparent that they may' be as-V sembled in required numbers to suit stumps of different sizes, the larger the stumpy the .more sections being required.

It is also seen that l.the hooks provided afford ieasy and `quick assembling or disassemblinguo-f the parts.

Such devices can be made .of Various sizes,

and comprising varying numbers of sections, some .of which should be dampered for the admittance of air to afford sufficient `draft for veasy burning, and by their use stumps can be quickly', safely and thoroughly burned, as the flames and heat is confined and directed against the stump enclosed.

Having thus described my invention, ,what 1 claim as new therein and desire to secure by LettersP'atent, is: Y j

1. A stump burner comprising a plurality of cylindrically curved, lower plate sections of .like size and shape, arranged-edgetoedge to form a circular enclosure about a stump, inwardly curved upper plate sections disposed .upon the lower sections yand `tapered toward their .upper endsfeach of said 'upper and lowerl plate sections .being provided, adjacent their edges, with interlocking devices whereby the sections may be separably joined together, and means whereby said upper sec'- tions may be supported at adjusted positions to regulate theinclination ythereof and the amount of open space above' the stump.

2. A stump'burner of theclass described comprising in combination a plurality of cylindrically curved, rectangular plates arranged edge to edge to form a circular enclosure, said plates having interlocking .members at their vertical yedges whereby they are separably joined together, and .having hook receiving devicesA atV .their upper edges, a pluralityy of tapered sections superimposed upon said lower sections forming a dome shaped cover over said enclosure, and having hooks fixed thereto at their lower edgesengaging said hook receiving ldeviceson the lower sections to hingedlyattach the upper sections, ratchet bars fixed pivotally to the upper sectionsto-depend along the lower sections and anchorrplates lfiXed to -said lower sections engageable by said bars to retain the upper sections at adjusted, inwardly sections and prevented from inward inove'- 'Y ment by said flanged plates, means secured to the adjacent edges .of said upper `and lower sections wherebyV the upper .sections maybe adjusted to and held at different inclined positions. f i Y Signed at VSeattle,WVashington, this 16th Y dayof December, i920.-v

'Y JOHN. fneiisrnniin -i 

